The Energy Department put $90 billion worth of grants, loan guarantees and loans into what it calls a “clean energy” economy. But that money is spread widely: About $3 billion went to carbon capture and storage projects needed to make coal “clean,” a goal Romney shares; about $11 billion went to energy efficiency; about $5 billion went to clean up old nuclear weapons sites; about $4 billion went to modernizing the electricity grid; and about $2 billion went to research and development, which Romney has also supported.